some help text fixes (#456)

Author: gauravsaralMs

.azure-pipelines/templates/setup-ci-machine.yml

@@ -1,7 +1,7 @@
 steps:
 - script: python -m pip install --upgrade pip
   displayName: 'Upgrade pip'
-- script: pip install wheel
+- script: pip install wheel==0.30.0
   displayName: 'Install Wheel'
 - script: pip install pytest
   displayName: 'Install pytest'

azure-devops/azext_devops/dev/repos/arguments.py

@@ -81,7 +81,7 @@ def load_code_arguments(self, _):
     with self.argument_context('repos policy file-size') as context:
         context.argument('maximum_git_blob_size',
                          help='Maximum git blob size in bytes. ' +
-                         'For example, to specify a 10byte limit, --maximum-git-blob-size 1024.')
+                         'For example, to specify a 10byte limit, --maximum-git-blob-size 10.')
         context.argument('use_uncompressed_size', arg_type=get_enum_type(_TRUE_FALSE_SWITCH),
                          help='Whether to use uncompressed size.')
 

azure-devops/azext_devops/dev/repos/policy.py

@@ -18,7 +18,7 @@
 
 
 def list_policy(organization=None, project=None, repository_id=None, branch=None, detect=None):
-    """List all branch policies in a project.
+    """List all policies in a project.
     :param repository_id: Id (UUID) of the repository.
     :type repository_id: string
     :param branch: Branch. (--repository-id is required)